228871648 has 12 divisors (see below), whose sum is σ = 450591120. Its totient is φ = 114435808.

The previous prime is 228871637. The next prime is 228871661. The reversal of 228871648 is 846178822.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 228871598 and 228871607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3576088 + ... + 3576151.

It is an arithmetic number, because the mean of its divisors is an integer number (37549260).

Almost surely, 2^228871648 is an apocalyptic number.

It is an amenable number.

228871648 is a deficient number, since it is larger than the sum of its proper divisors (221719472).

228871648 is an equidigital number, since it uses as much as digits as its factorization.

228871648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7152249 (or 7152241 counting only the distinct ones).

The product of its digits is 344064, while the sum is 46.

The square root of 228871648 is about 15128.5044865644. The cubic root of 228871648 is about 611.6889928751.

The spelling of 228871648 in words is "two hundred twenty-eight million, eight hundred seventy-one thousand, six hundred forty-eight".